NEW YORK - SEPTEMBER 08:  Vera Zvonareva of Russia returns a shot against Kaia Kanepi of Estonia during her women's singles quarterfinal match on day ten of the 2010 U.S. Open at the USTA Billie Jean King National Tennis Center on September 8, 2010 in the Flushing neighborhood of the Queens borough of New York City.  (Photo by Jim McIsaac/Getty Images)